xHCI Spec says TD Size (5 bits) field shall be forced to 31,
if the number of packets to be scheduled is greater than 31.
BUG=chrome-os-partner:27837
BRANCH=rambi,nyan
TEST=Manual: Ensure recovery boot with USB 2.0 media on Squawks
works fine without any babble errors.
Change-Id: Iff14000e2a0ca1b28c49d0da921dbb2a350a1bbd
Signed-off-by: Rajmohan Mani <rajmohan.mani@intel.com>
Originally-Reviewed-on: https://chromium-review.googlesource.com/202297
Reviewed-on: https://chromium-review.googlesource.com/202330
Reviewed-by: Shawn Nematbakhsh <shawnn@chromium.org>
Commit-Queue: Julius Werner <jwerner@chromium.org>
Tested-by: Julius Werner <jwerner@chromium.org>